This is a topic I am forever mulling over in my curious mind; I'm just as curious to know what everybody else thinks about this? Where will we be as a race in 500 years time? Will we still be here?Will we have achieved...

In terms of Time - How long is the present before it becomes the past, can it be measured.Maybe there is no such thing as the present. Before you have had time to finish pronouncing the word it becomes the past....